Cookie Policy
This Cookie Policy explains how the IDA website uses cookies and similar technologies, and how the IDA app measures advertising. IDA is a brand of ScalarRatio LLC. For more about how we handle personal data, see our Privacy Policy.
1. What cookies are
Cookies are small text files that a website stores on your device. They help the website work and can tell us how visitors use it. Similar technologies, such as local storage, work in the same way. In this policy, "cookies" covers all of them.
2. Your choice
When you first visit our website, we ask which optional cookies you allow. Strictly necessary cookies are always on. Everything else is only placed after you give consent. You can change your choice at any time through the Cookie settings link in the footer of every page.
3. Cookies we use
Strictly necessary
These cookies are needed for the website to work, for example to keep it secure, to load pages correctly and to remember your cookie choice. They do not require consent.
Analytics
With your consent, we use Google Analytics to understand how visitors use our website, such as which pages are visited and how people find us. This helps us improve the website.
Cookie | Provider | Purpose | Expires |
|---|---|---|---|
_ga | Distinguishes visitors | 2 years | |
_ga_* | Keeps track of your visit (session) | 2 years |
Marketing
With your consent, we use cookies and similar technologies from the advertising platforms we run campaigns with — Google Ads, Meta (Facebook and Instagram) and TikTok. We use them to measure how our campaigns perform: for example, how many people who saw an advert went on to visit the site or download the app.
These platforms set the cookies themselves and act as independent controllers for the data they receive, under their own privacy policies. They may combine it with data they already hold about you.
Cookie | Provider | Purpose | Expires |
|---|---|---|---|
_gcl_au | Links a visit to the advert that brought you here | About 3 months | |
_fbp | Meta | Measures campaign performance | About 3 months |
_fbc | Meta | Stores which advert you clicked | About 3 months |
_ttp | TikTok | Measures campaign performance | About 13 months |
If you do not consent, none of these are placed. The site works exactly the same; only our advertising is measured less accurately.
Preferences
With your consent, we remember choices you make on this site, such as which guide chapters you have read, so the site behaves the way you left it. These are stored on your device and are not shared with anyone.
4. Advertising measurement in the IDA app
The app does not use website cookies, but it does use your device's advertising identifier to measure advertising, in the same way cookies do on the web. We use this to find out which advert led to an app install.
In the European Economic Area, the United Kingdom and Switzerland, this is off until you give permission in the app, and you can withdraw permission at any time in the app's privacy settings. On iPhone and iPad, Apple asks separately before any advertising identifier can be used.
Section 7 of our Privacy Policy explains exactly what is collected, who receives it, and what is never included.
5. Managing cookies in your browser
You can also block or delete cookies in your browser settings. If you block strictly necessary cookies, parts of the website may not work.
6. Changes
We will update this policy when the cookies we use change, and ask for your consent again where needed.
7. Questions
If you have a question about cookies, please contact us.